Low-Power Display Visual Object Control for OPR Burn-In Reduction
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Solution Overview
Problem
Existing electronic devices face issues with increased power consumption and burn-in/afterimage formation due to high on-pixel ratios (OPR) of visual objects displayed in low-power states, which can degrade display panels and consume excessive power.
Innovation Solution
The electronic device dynamically adjusts the on-pixel ratio (OPR) of visual objects by changing the transparency or other attributes based on event identification, ensuring the OPR remains below a reference threshold to prevent burn-in and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If visual objects are displayed with high on-pixel ratio (OPR) in low-power state, then visual quality and visibility are improved, but power consumption increases and burn-in/afterimage formation occurs
Solution Approach 1:
The patent applies dynamics by making the OPR of visual objects adjustable rather than fixed. The system dynamically changes the OPR based on detected events (such as user interaction or environmental conditions), allowing the display to optimize between visual quality and power consumption in real-time. This resolves the contradiction by enabling the OPR to adapt to different operational contexts rather than being statically high.
Solution Approach 2:
The patent changes the OPR parameter from a constant high value to a variable parameter that can be adjusted between different states. By modifying this key display parameter based on event detection, the system achieves both high visual quality when needed and reduced power consumption during low-activity periods, directly resolving the technical contradiction between these two opposing requirements.
2Illumination intensity
If visual objects are displayed with high on-pixel ratio (OPR) in low-power state, then visual quality is improved, but burn-in and afterimage formation increase
Solution Approach 1:
The system dynamically adjusts the OPR of visual objects based on detected events, transitioning between high OPR (for visual quality) and low OPR (for panel protection). This dynamic adaptation prevents prolonged exposure to high OPR that causes burn-in, while maintaining visual quality when events indicate user presence or interaction, thus resolving the contradiction between visual quality and panel reliability.
Solution Approach 2:
The patent implements preliminary anti-action by detecting events in advance and proactively adjusting the OPR before burn-in can occur. When no events are detected for a certain period, the system preemptively reduces the OPR to protect the panel, preventing burn-in and afterimage formation before they happen, while maintaining high visual quality when events occur.
3Use of energy by moving object
If dynamic adjustment of OPR is implemented, then power consumption is reduced and panel lifespan is extended, but device complexity increases
Solution Approach 1:
The system implements self-service by using the display panel's own event detection capabilities to trigger OPR adjustments. The panel monitors its own operational state and automatically adapts the visual object OPR without requiring external control systems, thereby reducing power consumption and extending lifespan while minimizing the added complexity to only what is necessary for self-monitoring and adjustment.
Data Source
AI summary
An electronic device includes memory storing instructions. The electronic device includes at least one processor comprising processing circuitry. The electronic device includes a display panel including a plurality of pixels. The instructions, when executed by the at least one processor individually and/or collectively, cause the electronic device to: display, through the display panel, a screen for a low-power state including at least one visual object; identify an event for displaying a visual object in the screen while displaying the screen; identify an on-pixel ratio (OPR) of the visual object in response to the event; and based on changing a first value representing an attribute of the visual object to a second value lower than the first value in response to the OPR being higher than a reference OPR, display, through the display panel, the screen including the visual object.